By Richard Clarke in Germany

Conor Henderson is expected to be out for a minimum of six months after damaging his cruciate ligaments.

The 19-year-old midfielder twisted his knee in the final seconds of the 2-1 win over Cologne on Saturday and was stretchered off. The Irishman flew home that night for tests and, unfortunately, they revealed a lengthy spell on the sidelines.

“Conor has a knee injury and it looks as if it is a cruciate,” Arsène Wenger told Arsenal.com. “That means unfortunately that he will be out for six months at the very least.”

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 27 Jul 2011